Read the text again and complete the sentences.
1. The P-N-P transistor is ….
2. The geometry of junction transistors differs depending on ….
3. … the transistor may be considered as two diodes.
4. The emitter-base constitutes ….
5. … are the majority current carriers in the emitter-base diode.
6. The emitter-collector circuit is ….
7. Collector current may be controlled readily by ….
8. … may also be made with an N-P-N configuration.
9. Base current will increase or decrease very little when ….
10. Changes in emitter-base bias will result in ….
Match the terms in Table A with their definitions in Table B.
Table A
| Table B
| 1. beam
2. satellite
3. transistor
4. base
5. sensitivity
| a. The ability to react to very small changes in light, heat, movement etc.
b. The lowest part or surface of something [= bottom]
c. A line of light, energy etc that you cannot see.
d. A machine that has been sent into space and goes around the Earth, moon etc, used for radio, television, and other electronic communication.
e. A small piece of electronic equipment in radios, televisions etc that controls the flow of electricity.
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SPEAKING
23. Summarize the text “ Junction Transistors” in 150 words.
Divide into 2 groups. Group 1 translates Extract A and group 2 – extract B of the text with a dictionary in writing.
Extract A
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